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Publish shard CC-MAIN-2026-08/00262

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  1. README.md +12 -12
  2. data/CC-MAIN-2026-08/00262.parquet +3 -0
  3. stats.csv +3 -1
README.md CHANGED
@@ -32,7 +32,7 @@ configs:
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  Open Index is a large-scale web text dataset built from [Common Crawl](https://commoncrawl.org). Every page goes through a pipeline that extracts the main content from raw HTML, converts it to clean Markdown using [trafilatura](https://github.com/adbar/trafilatura), and packages the result into Parquet files with full WARC metadata preserved.
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- The dataset currently includes crawl **CC-MAIN-2026-08** with **2,177,151 documents across 111 shards**. We plan to add more snapshots over time.
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  Open Index is released under the **Open Data Commons Attribution License (ODC-By) v1.0**, the same license used by Common Crawl.
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@@ -166,28 +166,28 @@ Empty conversions (pages where trafilatura could not extract meaningful content)
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  ### Compression Ratios
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- Numbers below are actual measurements summed across all 111 files of CC-MAIN-2026-08 (2,177,151 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 111 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~90.0 GB | ~83 TB | — |
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- | HTML extracted (uncompressed) | 270.2 GB | ~295 TB | — |
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- | Packed markdown WARC (.md.warc.gz) | ~4.5 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 3.1 GB | ~2.9 TB | **-31.8%** vs packed WARC |
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- The big win is the HTML → Markdown step: trafilatura strips all tags, scripts, styles, navigation, and ads, keeping only the main content. This cuts 270.2 GB of uncompressed HTML down to 9.6 GB of markdown — a **98.3% reduction** — before any file-level compression is applied. Parquet with Zstd level 19 then compresses the markdown a further 68.0%.
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- End to end: ~90.0 GB of raw gzipped WARCs becomes **3.1 GB of Parquet** — a **96.6% total reduction** — containing 2,177,151 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 111 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 3h 43m 8s avg 2m 0s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 16m 2s avg 8s
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- Export (Parquet) ████░░░░░░░░░░░░░░░░░░░░ total 45m 21s avg 24s
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- Publish (HuggingFace) ███████░░░░░░░░░░░░░░░░░ total 1h 12m 44s avg 39s
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  ```
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  ### Dataset Charts
 
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  Open Index is a large-scale web text dataset built from [Common Crawl](https://commoncrawl.org). Every page goes through a pipeline that extracts the main content from raw HTML, converts it to clean Markdown using [trafilatura](https://github.com/adbar/trafilatura), and packages the result into Parquet files with full WARC metadata preserved.
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+ The dataset currently includes crawl **CC-MAIN-2026-08** with **2,216,028 documents across 113 shards**. We plan to add more snapshots over time.
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  Open Index is released under the **Open Data Commons Attribution License (ODC-By) v1.0**, the same license used by Common Crawl.
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  ### Compression Ratios
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+ Numbers below are actual measurements summed across all 113 files of CC-MAIN-2026-08 (2,216,028 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 113 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~91.6 GB | ~83 TB | — |
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+ | HTML extracted (uncompressed) | 275.0 GB | ~295 TB | — |
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+ | Packed markdown WARC (.md.warc.gz) | ~4.6 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 3.1 GB | ~2.9 TB | **-31.8%** vs packed WARC |
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+ The big win is the HTML → Markdown step: trafilatura strips all tags, scripts, styles, navigation, and ads, keeping only the main content. This cuts 275.0 GB of uncompressed HTML down to 9.8 GB of markdown — a **98.3% reduction** — before any file-level compression is applied. Parquet with Zstd level 19 then compresses the markdown a further 68.0%.
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+ End to end: ~91.6 GB of raw gzipped WARCs becomes **3.1 GB of Parquet** — a **96.6% total reduction** — containing 2,216,028 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 113 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 3h 47m 33s avg 2m 0s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 16m 2s avg 8s
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+ Export (Parquet) ████░░░░░░░░░░░░░░░░░░░░ total 46m 12s avg 24s
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+ Publish (HuggingFace) ███████░░░░░░░░░░░░░░░░░ total 1h 13m 31s avg 39s
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  ```
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  ### Dataset Charts
data/CC-MAIN-2026-08/00262.parquet ADDED
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:1afea3bfce67f92e20a55b3ed43403f412c1d0b5771da9d61e51fd6ddc8508e7
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+ size 28470338
stats.csv CHANGED
@@ -69,6 +69,7 @@ CC-MAIN-2026-08,258,19594,2562768558,93951481,28809284,2026-03-13T07:13:13Z,157,
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  CC-MAIN-2026-08,259,19381,2566397701,90109275,29321014,2026-03-13T07:16:29Z,169,0,19,6
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  CC-MAIN-2026-08,260,19334,2553916248,92962972,29646143,2026-03-13T07:22:01Z,284,0,29,17
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  CC-MAIN-2026-08,261,19637,2584855305,96241876,32062389,2026-03-13T07:25:30Z,139,0,25,42
 
72
  CC-MAIN-2026-08,401,19517,2605589961,95609438,30404753,2026-03-13T06:41:08Z,218,0,47,107
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  CC-MAIN-2026-08,402,19446,2552785517,96654791,30588984,2026-03-13T06:43:58Z,98,0,26,44
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  CC-MAIN-2026-08,403,19320,2579048144,91406292,29375992,2026-03-13T06:49:29Z,198,0,33,98
@@ -98,7 +99,7 @@ CC-MAIN-2026-08,708,19377,2578205107,96371988,31074449,2026-03-13T07:12:06Z,143,
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  CC-MAIN-2026-08,709,19462,2570199898,94314051,29775462,2026-03-13T07:14:59Z,128,0,21,22
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  CC-MAIN-2026-08,710,19270,2508553424,93464756,29691240,2026-03-13T07:18:55Z,162,0,27,44
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  CC-MAIN-2026-08,711,19399,2584555709,91747716,28885762,2026-03-13T07:24:08Z,252,0,32,27
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- CC-MAIN-2026-08,712,19335,2543065275,92996974,29652529,2026-03-13T07:26:33Z,120,0,24,0
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  CC-MAIN-2026-08,851,19575,2612873485,97000364,30911294,2026-03-13T06:41:39Z,163,0,37,204
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  CC-MAIN-2026-08,852,19334,2546015208,94959847,30205044,2026-03-13T06:45:52Z,183,0,57,11
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  CC-MAIN-2026-08,853,19694,2567973975,95901932,30303494,2026-03-13T06:50:12Z,150,0,28,80
@@ -110,3 +111,4 @@ CC-MAIN-2026-08,858,19334,2597016068,94530828,30545661,2026-03-13T07:13:03Z,196,
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  CC-MAIN-2026-08,859,19255,2580352354,93040618,29288941,2026-03-13T07:16:37Z,158,0,22,31
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  CC-MAIN-2026-08,860,19579,2621603372,97234729,30832377,2026-03-13T07:22:32Z,272,0,37,44
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  CC-MAIN-2026-08,861,19490,2569643917,90715876,29081843,2026-03-13T07:25:26Z,115,0,24,32
 
 
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  CC-MAIN-2026-08,259,19381,2566397701,90109275,29321014,2026-03-13T07:16:29Z,169,0,19,6
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  CC-MAIN-2026-08,260,19334,2553916248,92962972,29646143,2026-03-13T07:22:01Z,284,0,29,17
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  CC-MAIN-2026-08,261,19637,2584855305,96241876,32062389,2026-03-13T07:25:30Z,139,0,25,42
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+ CC-MAIN-2026-08,262,19342,2556139647,91304795,28470338,2026-03-13T07:28:10Z,136,0,23,0
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  CC-MAIN-2026-08,401,19517,2605589961,95609438,30404753,2026-03-13T06:41:08Z,218,0,47,107
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  CC-MAIN-2026-08,402,19446,2552785517,96654791,30588984,2026-03-13T06:43:58Z,98,0,26,44
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  CC-MAIN-2026-08,403,19320,2579048144,91406292,29375992,2026-03-13T06:49:29Z,198,0,33,98
 
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  CC-MAIN-2026-08,709,19462,2570199898,94314051,29775462,2026-03-13T07:14:59Z,128,0,21,22
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  CC-MAIN-2026-08,710,19270,2508553424,93464756,29691240,2026-03-13T07:18:55Z,162,0,27,44
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  CC-MAIN-2026-08,711,19399,2584555709,91747716,28885762,2026-03-13T07:24:08Z,252,0,32,27
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+ CC-MAIN-2026-08,712,19335,2543065275,92996974,29652529,2026-03-13T07:27:08Z,120,0,24,34
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  CC-MAIN-2026-08,851,19575,2612873485,97000364,30911294,2026-03-13T06:41:39Z,163,0,37,204
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  CC-MAIN-2026-08,852,19334,2546015208,94959847,30205044,2026-03-13T06:45:52Z,183,0,57,11
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  CC-MAIN-2026-08,853,19694,2567973975,95901932,30303494,2026-03-13T06:50:12Z,150,0,28,80
 
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  CC-MAIN-2026-08,859,19255,2580352354,93040618,29288941,2026-03-13T07:16:37Z,158,0,22,31
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  CC-MAIN-2026-08,860,19579,2621603372,97234729,30832377,2026-03-13T07:22:32Z,272,0,37,44
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  CC-MAIN-2026-08,861,19490,2569643917,90715876,29081843,2026-03-13T07:25:26Z,115,0,24,32
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+ CC-MAIN-2026-08,862,19535,2608751766,96008732,30532163,2026-03-13T07:28:04Z,129,0,28,0